In recent years this has been one of our more unusual jobs. We were assigned the task of replicating a 1950s pub advertisement for a pub in Saltaire, West Yorkshire. We were given an original pub advertisement by the pub, and we had to replicate it using an airbrush.
However, the original advertisement measured only 18 by 15 inches. We had to enlarge the replication to 5ft by 4ft.

Here is a close up photo of the glass on the replication.